/* ----------------------------------------------------
   Global reset & variables
---------------------------------------------------- */

/* latin-ext */
@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/poppins/poppins_400.woff2") format("woff2");
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: "Poppins", system-ui, -apple-system, sans-serif;
  font-weight: 400;
  background: #000;
  color: #111;
}

body.card-open {
  overflow: hidden;
}

body.card-open .nav {
  pointer-events: none;
}

body.card-open .nav img {
  opacity: 0.2;
}

/* Base design reference: 1920x1080
   - 40px   ≈ 3.7vh
   - 104px  ≈ 9.6vh
*/

:root {
  /* main knobs */
  --corner-size: calc(100vh * 104 / 1080);
  --corner-margin: calc(100vh * 40 / 1080);
  --nav-thickness: calc(100vh * 104 / 1080);
  --arrow-size: calc(100vh * 40 / 1080);
  --arrow-bg-size: 0.25em;

  /* card sizing */
  --card-radius: calc(100vh * 24 / 1080);
  --card-pad-v: calc(100vh * 40 / 1080);
  --card-pad-h: calc(100vh * 48 / 1080);

  /* card shadow */
  --card-shadow-y: calc(100vh * 24 / 1080);
  --card-shadow-blur: calc(100vh * 60 / 1080);

  /* card in navigation arrows rectangle */
  --safe-inset: calc(var(--corner-margin) + var(--corner-size));
}

/* ----------------------------------------------------
   Viewport & background
---------------------------------------------------- */

.viewport__bg-stack {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  background: #fff;
}

.viewport__background {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  will-change: transform, opacity;
}

.viewport__background--next {
  pointer-events: none;
}

/* horizontal */
.bg-slide-left-enter {
  transform: translateX(-100%);
}
.bg-slide-left-active {
  transform: translateX(0);
  transition: transform 0.45s ease-out;
}
.bg-slide-left-exit {
  transform: translateX(100%);
  transition: transform 0.45s ease-out;
}

.bg-slide-right-enter {
  transform: translateX(100%);
}
.bg-slide-right-active {
  transform: translateX(0);
  transition: transform 0.45s ease-out;
}
.bg-slide-right-exit {
  transform: translateX(-100%);
  transition: transform 0.45s ease-out;
}

/* vertical */
.bg-slide-up-enter {
  transform: translateY(-100%);
}
.bg-slide-up-active {
  transform: translateY(0);
  transition: transform 0.45s ease-out;
}
.bg-slide-up-exit {
  transform: translateY(100%);
  transition: transform 0.45s ease-out;
}

.bg-slide-down-enter {
  transform: translateY(100%);
}
.bg-slide-down-active {
  transform: translateY(0);
  transition: transform 0.45s ease-out;
}
.bg-slide-down-exit {
  transform: translateY(-100%);
  transition: transform 0.45s ease-out;
}

/* ----------------------------------------------------
   Corners
---------------------------------------------------- */

.corner {
  position: absolute;
  height: var(--corner-size);
  padding: 0;
  border: 0;
  background: transparent;
  display: flex;
  align-items: center;
  cursor: pointer;
  z-index: 200;
}

button.corner {
  -webkit-appearance: none;
  appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: inherit;
}

.corner-inner {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: var(--corner-size);
  z-index: 210;
}

.corner--tl {
  top: var(--corner-margin);
  left: var(--corner-margin);
}

.corner--tr {
  top: var(--corner-margin);
  right: var(--corner-margin);
}

.corner--bl {
  bottom: var(--corner-margin);
  left: var(--corner-margin);
  cursor: default;
}

.corner--br {
  bottom: var(--corner-margin);
  right: var(--corner-margin);
}

.corner.is-open .corner__icon {
  transform: scale(0.95);
}

/* ----------------------------------------------------
   Corner background
---------------------------------------------------- */

.corner-bg {
  position: absolute;
  width: calc(var(--corner-size) + 8px);
  height: calc(var(--corner-size) + 8px);
  top: -4px;
  left: -4px;
  background: rgba(255, 255, 255, 0.95);
  opacity: 0;
  pointer-events: none;
  transform: scale(0.92);
  transition: opacity 0.15s ease-out, transform 0.15s ease-out;
  z-index: 1;
}

.corner--bl .corner-bg,
.corner--br .corner-bg {
  top: -4px;
  right: -4px;
  bottom: -4px;
  left: -4px;
  width: auto;
  height: auto;
  transform: none;
}

.corner__icon {
  width: var(--corner-size);
  height: var(--corner-size);
  flex: 0 0 auto;
  position: relative;
  z-index: 2;
  transition: opacity 0.15s ease-out, transform 0.15s ease-out;
}

/* ----------------------------------------------------
   Bottom-left project label
---------------------------------------------------- */

.corner--bl .corner-inner {
  align-items: flex-end;
}

.corner-label {
  white-space: nowrap;
  overflow: hidden;
  max-width: 0;
  opacity: 0;
  transform: translateX(0);
  font-size: clamp(1.2rem, 2.4vh, 2rem);
  letter-spacing: 0.05em;
  z-index: 2;
  transition:
    max-width 0.2s ease-out,
    opacity 0.15s ease-out,
    transform 0.15s ease-out;
}

.corner--bl.is-open .corner-label--project {
  max-width: 40vh;
  opacity: 1;
  margin-left: 0.1rem;
  transform: translateX(0.2rem);
}

/* ----------------------------------------------------
   Bottom-right socials
---------------------------------------------------- */

.corner--br .corner-inner {
  flex-direction: row-reverse;
  gap: calc(var(--corner-size) * 0.1);
}

.corner-main {
  position: relative;
  width: var(--corner-size);
  height: var(--corner-size);
  flex: 0 0 auto;
  z-index: 2;
}

.corner-main .corner__icon {
  position: absolute;
  inset: 0;
}

.icon-base {
  opacity: 1;
  z-index: 2;
  transition: opacity 0.15s ease-out;
}

.icon-social {
  opacity: 0;
  z-index: 2;
  transition: opacity 0.15s ease-out;
}

.corner--br .social-wrap {
  width: auto;
  display: contents;
}

.corner--br .social-bg {
  display: none;
}

.social-list {
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  max-width: 0;
  opacity: 0;
  position: relative;
  z-index: 2;
  transition:
    max-width 0.25s ease-out,
    opacity 0.15s ease-out,
    transform 0.15s ease-out;
}

.corner--br .social-list a {
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition: opacity 0.15s ease-out, transform 0.15s ease-out;
}

.social-list a + a {
  margin-left: calc(var(--corner-size) * 0.1);
}

.social-list a img {
  width: var(--corner-size);
  height: var(--corner-size);
  display: block;
  opacity: 0.8;
  transition: opacity 0.15s ease-out, transform 0.15s ease-out;
}

.corner--br.is-open .icon-base {
  opacity: 0;
}

.corner--br.is-open .icon-social {
  opacity: 1;
}

.corner--br.is-open .social-list {
  max-width: 999px;
  opacity: 1;
}

.corner--br.is-open .social-list a {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* shared open background for touch/JS states */
.corner.is-open .corner-bg {
  opacity: 1;
  transform: scale(1);
}

.corner-trigger {
  -webkit-appearance: none;
  appearance: none;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  box-shadow: none;
  color: inherit;
  font: inherit;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
/* ----------------------------------------------------
   Desktop hover states
---------------------------------------------------- */

@media (hover: hover) and (pointer: fine) {
  .corner:not(.corner--br):hover .corner-bg {
    opacity: 1;
    transform: scale(1);
  }

  .corner--bl:hover .corner-label--project {
    max-width: 60vh;
    opacity: 1;
    margin-left: 0.1rem;
    margin-right: 0.1rem;
    transform: translateX(0.2rem);
  }

  .corner--br:hover .corner-bg,
  .corner--br.is-open .corner-bg {
    opacity: 1;
    transform: scale(1);
  }

  .corner--br:hover .icon-base {
    opacity: 0;
  }

  .corner--br:hover .icon-social {
    opacity: 1;
  }

  .corner--br:hover .social-list {
    max-width: 999px;
    opacity: 1;
  }

  .corner--br:hover .social-list a {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .social-list a:hover img {
    opacity: 1;
    transform: scale(0.98);
  }
}

/* ----------------------------------------------------
   Navigation edge zones
---------------------------------------------------- */

.nav {
  position: absolute;
  border: 0;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

.nav--left,
.nav--right {
  top: calc(var(--corner-margin) + var(--corner-size));
  bottom: calc(var(--corner-margin) + var(--corner-size));
  width: var(--nav-thickness);
}

.nav--left {
  left: var(--corner-margin);
}

.nav--right {
  right: var(--corner-margin);
}

.nav--top,
.nav--bottom {
  left: calc(var(--corner-margin) + var(--corner-size));
  right: calc(var(--corner-margin) + var(--corner-size));
  height: var(--nav-thickness);
}

.nav--top {
  top: var(--corner-margin);
}

.nav--bottom {
  bottom: var(--corner-margin);
}

.nav img {
  width: var(--arrow-size);
  height: var(--arrow-size);
  opacity: 0.55;
  transition:
    opacity 0.15s ease-out,
    transform 0.15s ease-out,
    box-shadow 0.15s ease-out,
    background-color 0.15s ease-out;
}

.nav--left img {
  transform: rotate(0deg);
}

.nav--right img {
  transform: rotate(180deg);
}

.nav--top img {
  transform: rotate(90deg);
}

.nav--bottom img {
  transform: rotate(-90deg);
}

@media (hover: hover) and (pointer: fine) {
  .nav--left:hover img {
    opacity: 0.95;
    transform: rotate(0deg) scale(1.05);
    background-color: #fff;
    box-shadow: 0 0 0 var(--arrow-bg-size) #fff;
  }

  .nav--right:hover img {
    opacity: 0.95;
    transform: rotate(180deg) scale(1.05);
    background-color: #fff;
    box-shadow: 0 0 0 var(--arrow-bg-size) #fff;
  }

  .nav--top:hover img {
    opacity: 0.95;
    transform: rotate(90deg) scale(1.05);
    background-color: #fff;
    box-shadow: 0 0 0 var(--arrow-bg-size) #fff;
  }

  .nav--bottom:hover img {
    opacity: 0.95;
    transform: rotate(-90deg) scale(1.05);
    background-color: #fff;
    box-shadow: 0 0 0 var(--arrow-bg-size) #fff;
  }
}

@media (hover: none) and (pointer: coarse) {
  .nav:active img {
    background-color: #fff;
    box-shadow: 0 0 0 var(--arrow-bg-size) #fff;
  }
}

/* ----------------------------------------------------
   Central card (popup)
---------------------------------------------------- */

.card {
  position: absolute;
  top: 50%;
  left: 50%;
  background: #ffffff;
  box-shadow: 0 var(--card-shadow-y) var(--card-shadow-blur)
    rgba(0, 0, 0, 0.4);
  padding: var(--card-pad-v) var(--card-pad-h);
  opacity: 0;
  pointer-events: none;
  z-index: 100;
  max-width: min(90ch, calc(100vw - (2 * var(--safe-inset))));
  max-height: calc(100vh - (2 * var(--safe-inset)));
  overflow: auto;
  --card-shift-y: 1vh;
  transform: translate(-50%, -50%) translateY(var(--card-shift-y));
  transition:
    opacity 0.25s ease-out,
    transform 0.25s ease-out;
}

.card--visible {
  opacity: 1;
  z-index: 1000;
  pointer-events: auto;
  --card-shift-y: 0vh;
}

.card-overlay {
  position: absolute;
  inset: 0;
  z-index: 900;
  opacity: 0;
  pointer-events: none;
}

.card-overlay--visible {
  pointer-events: auto;
}

.card__close {
  -webkit-appearance: none;
  appearance: none;
  border: 0;
  outline: none;
  box-shadow: none;
  background: transparent;
  color: #111;
  -webkit-tap-highlight-color: transparent;

  position: absolute;
  top: calc(var(--card-pad-v) * 0.45);
  right: calc(var(--card-pad-h) * 0.45);
  font-size: clamp(1.4rem, 2vh, 1.8rem);
  line-height: 1;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.15s ease-out, transform 0.15s ease-out;
}

.card__close:hover {
  opacity: 1;
  transform: scale(1.05);
}

.card__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
}

.card__content h1 {
  font-size: clamp(1.6rem, 3vh, 2.2rem);
  margin: 0 0 0.6rem;
  letter-spacing: 0.08em;
}

.card__content h2 {
  font-size: clamp(1.1rem, 2.1vh, 1.4rem);
  margin: 0 0 1.3rem;
  color: #555;
}

.card__content p {
  max-width: 60ch;
  margin: 0 0 1rem;
  line-height: 1.6;
  font-size: clamp(0.9rem, 1.7vh, 1rem);
}

.card__content a {
  color: #0055ff;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 85, 255, 0.3);
}

.card__content a:hover {
  border-bottom-color: rgba(0, 85, 255, 0.7);
}

.card__content p[hidden] {
  display: none;
}

/* ----------------------------------------------------
   Full-page project page
---------------------------------------------------- */

.project-page {
  position: absolute;
  inset: 0;
  background: #fff;
  z-index: 3;
  display: block;
  opacity: 0;
  pointer-events: none;
  transform: translateX(0);
}

.project-page--visible {
  opacity: 1;
  pointer-events: auto;
}

.project-slide-left-enter {
  opacity: 1;
  transform: translateX(-100%);
}

.project-slide-left-active {
  opacity: 1;
  transform: translateX(0);
  transition: transform 0.45s ease-out;
}

.project-slide-right-enter {
  opacity: 1;
  transform: translateX(100%);
}

.project-slide-right-active {
  opacity: 1;
  transform: translateX(0);
  transition: transform 0.45s ease-out;
}

.project-slide-up-enter {
  opacity: 1;
  transform: translateY(-100%);
}

.project-slide-up-active {
  opacity: 1;
  transform: translateY(0);
  transition: transform 0.45s ease-out;
}

.project-slide-down-enter {
  opacity: 1;
  transform: translateY(100%);
}

.project-slide-down-active {
  opacity: 1;
  transform: translateY(0);
  transition: transform 0.45s ease-out;
}

.project-slide-left-exit {
  opacity: 1;
  transform: translateX(100%);
  transition: transform 0.45s ease-out;
}

.project-slide-right-exit {
  opacity: 1;
  transform: translateX(-100%);
  transition: transform 0.45s ease-out;
}

.project-slide-up-exit {
  opacity: 1;
  transform: translateY(100%);
  transition: transform 0.45s ease-out;
}

.project-slide-down-exit {
  opacity: 1;
  transform: translateY(-100%);
  transition: transform 0.45s ease-out;
}

.card--inline {
  position: absolute;
  top: var(--safe-inset);
  right: var(--safe-inset);
  bottom: var(--safe-inset);
  left: var(--safe-inset);
  transform: none;
  background: transparent;
  box-shadow: none;
  opacity: 1;
  pointer-events: auto;
  z-index: 3;
  max-width: none;
  max-height: none;
  overflow: auto;
  padding: 0;
}

.card--inline .card__content {
  min-height: 100%;
  padding: clamp(2rem, 5vh, 4rem) clamp(1.5rem, 4vw, 3rem);
}

/* ----------------------------------------------------
   Preloader
---------------------------------------------------- */

.preloader {
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 9999;
  display: grid;
  place-items: center;
  opacity: 1;
  transition: opacity 0.35s ease-out, visibility 0.35s ease-out;
}

.preloader__icon {
  width: clamp(56px, 10vh, 110px);
  height: auto;
  animation: preloaderPulse 1.1s ease-in-out infinite;
  transform-origin: center;
}

.preloader--hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

@keyframes preloaderPulse {
  0% {
    transform: scale(0.92);
    opacity: 0.55;
  }
  50% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(0.92);
    opacity: 0.55;
  }
}

/* ----------------------------------------------------
   Responsive tweaks
---------------------------------------------------- */

@media (max-aspect-ratio: 4/3) {
  :root {
    --corner-size: calc(100vh * 90 / 1080);
    --corner-margin: calc(100vh * 32 / 1080);
    --nav-thickness: calc(100vh * 90 / 1080);
    --arrow-size: calc(100vh * 32 / 1080);
  }
}

@media (max-width: 768px) {
  .corner--br .social-wrap {
  display: block;
  }

  .card {
    position: fixed;
    top: calc(env(safe-area-inset-top, 16px) + 22vh);
    left: auto;
    right: auto;
    bottom: auto;
    width: auto;
    max-width: none;
    max-height: 60vh;
    overflow-y: auto;
    transform: translateY(var(--card-shift-y));
  }

    .card--inline {
    left: calc(var(--safe-inset) + 0.6rem);
    right: calc(var(--safe-inset) + 0.6rem);
  }

  .card--inline .card__content {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .corner--br {
    position: absolute;
  }

  .corner--br .social-wrap {
    display: block;
    position: absolute;
    right: 0;
    bottom: calc(var(--corner-size) + 0.4rem);
    width: var(--corner-size);
    z-index: 220;
  }

  .corner--br .social-bg {
    display: block;
    position: absolute;
    top: -4px;
    right: -4px;
    bottom: -4px;
    width: calc(var(--corner-size) + 8px);
    background: rgba(255, 255, 255, 0.95);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease-out;
    z-index: 0;
  }

  .corner--br .social-list {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    width: auto;
    max-width: none;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    z-index: 1;
    transition:
      max-height 0.2s ease-out,
      opacity 0.15s ease-out;
  }

  .corner--br .social-list a + a {
    margin-left: 0;
    margin-top: calc(var(--corner-size) * 0.08);
  }

  .corner--br.is-open .social-bg {
    opacity: 1;
  }

  .corner--br.is-open .social-list {
    opacity: 1;
    max-height: calc(var(--corner-size) * 10);
    pointer-events: auto;
  }
}

/* ----------------------------------------------------
   Touch-specific behavior
---------------------------------------------------- */

@media (hover: none) {
  .corner:active .corner-inner {
    transform: scale(0.96);
  }
}

@media (hover: none) and (pointer: coarse) {
  html,
  body,
  .viewport {
    overscroll-behavior: none;
  }

  .card,
  .card--inline {
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  .corner:hover .corner-bg {
    opacity: 0;
    transform: none;
  }

  .corner.is-open .corner-bg {
  opacity: 1;
  transform: scale(1);
  }

  .corner--br.is-open .social-bg {
    opacity: 1;
  }

  .corner--bl.is-open .corner-label {
    max-width: 40vh;
    opacity: 1;
    margin-left: 0.1rem;
    transform: translateX(0.2rem);
  }

  .corner--br.is-open .icon-base {
    opacity: 0;
  }

  .corner--br.is-open .icon-social {
    opacity: 1;
  }

  .corner--br .social-list a {
    pointer-events: none;
  }

  .corner--br.is-open .social-list a {
    pointer-events: auto;
  }
}

/* ----------------------------------------------------
   Mobile / tablet landscape fixes only
---------------------------------------------------- */
@media (hover: none) and (pointer: coarse) and (orientation: landscape) and (max-width: 1024px) {
  /* BL label: use viewport width in landscape, not vh */
  .corner--bl.is-open .corner-label--project {
    max-width: min(34vw, 75vh);
    margin-right: 0.1rem;
  }

  /* keep the hover/touch-open state aligned the same way */
  .corner--bl.is-open .corner-label {
    max-width: min(34vw, 75vh);
  }

  /* About / Contact popup: restore true centering only in landscape touch */
  .card {
    position: fixed;
    top: 50%;
    left: 50%;
    right: auto;
    bottom: auto;
    width: auto;
    max-width: min(90ch, calc(100vw - (2 * var(--safe-inset)) - 1rem));
    max-height: calc(100vh - (2 * var(--safe-inset)) - 1rem);
    transform: translate(-50%, -50%) translateY(var(--card-shift-y));
  }

  .card--visible {
    --card-shift-y: 0vh;
  }
}